John Ruiz (Democrat) was a candidate who sought election to the New York State Assembly to represent District 68. Ruiz lost the primary on September 13, 2018.

Ruiz was previously a Democratic candidate for District 8 representative on the New York City Council in New York. He filed for the primary election on September 12, 2017, but, as of August 4, 2017, his name did not appear on the official candidate list. Ruiz was also a Working Families Party candidate for District 68 of the New York State Assembly in 2010.